[Hands on - Bug] #660
Description
Unit 1 : hands on
The environment was updated from "LunarLander-v2" to "LunarLander-v3" in gymnasium.farama.org.
When I used "LunarLander-v2" to create the environment in colab, I encountered a bug.
So I rewrote it to use v3, but still get an error.
